Joel Sartore Joel Sartore

National Geographic Photographer and Speaker

Picture of a butterfly, Morpho aega, at the McGuire Center for Lepidoptera and Biodiversity.

INS007-00361

A butterfly, Morpho aega, at the McGuire Center for Lepidoptera and Biodiversity. This pinned specimen is a mosaic gynandromorph – an aberration in which male and female cells are mixed together. In this mostly female specimen (which are normally orange-and-black) blue scales represent male cells.

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This photo © Joel Sartore 2021. Image usage guidelines

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